TY - GEN AU - Yu,Li-Rong AU - Zhu,Zhongyu AU - Chan,King C AU - Issaq,Haleem J AU - Dimitrov,Dimiter S AU - Veenstra,Timothy D TI - Improved titanium dioxide enrichment of phosphopeptides from HeLa cells and high confident phosphopeptide identification by cross-validation of MS/MS and MS/MS/MS spectra SN - 1535-3893 PY - 2008///0102 KW - Animals KW - Caseins KW - chemistry KW - Cattle KW - Chromatography, High Pressure Liquid KW - Gene Expression Regulation, Neoplastic KW - Glutamic Acid KW - HeLa Cells KW - Humans KW - Mass Spectrometry KW - methods KW - Peptides KW - Phosphopeptides KW - Proteomics KW - Salts KW - Titanium KW - Trypsin N1 - Publication Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, N.I.H., Intramural UR - https://doi.org/10.1021/pr070152u ER -